Hi,
I tried setting up cgroup with the CPU sub group only, but the supervisor
crashes with null pointer exception.
I am pretty new to cgroups, so any help in configuring it would be highly
appreciated.
Thanks and regards,
ravi
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________________________________
From: ravi kiran puttaswamy
Sent: Sunday, April 1, 2018 5:28:06 PM
To: user@storm.apache.org
Subject: Cgroup enforcement support for ubuntu 17.04
Hi all,
I am trying to configure cgroup on an ubuntu 17.04 machine. I am following
the instructions provided at :
http://storm.apache.org/releases/2.0.0-SNAPSHOT/cgroups_in_storm.html
Ubuntu does not seem to allow mounting multiple subsystems onto the same
mount point. When I try to use the setting
<snip from /etc/cgconfig.conf>
mount {
cpu = /cgroup/storm_resources;
cpuacct = /cgroup/storm_resources;
memory = /cgroup/storm_resources;
}
</snip>
However I get the following error :
<snip>
ubuntu@rput-ub-stdaln ~> sudo cgconfigparser -l /etc/cgconfig.conf
Error: cannot mount cpu,cpuacct,memory to /cgroup/storm_resources: Device
or resource busy
cgconfigparser; error loading /etc/cgconfig.conf: Cgroup mounting failed
</snip>
I tried to mount the subsystems manually with the mount command, and I get the
same error.
So I wanted to know if Cgroup enforcement is supported on ubuntu 17.04. If so,
can you please provide the right way to setup cgroup?
Also I believe the semantics of how Cgroup operates is in version 2 changes.
Does the current implementation in storm support cgroup v2?
thanks and regards,
ravi
